Shock shim



FIG. 1 is a top perspective view of a shock shim showing the new design;

FIG. 2 is a right side view thereof, the left side view being the same image thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front perspective view thereof of the design in the context in which it is intended to be used, the dashed lines form no part of the claimed design. 

The ornamental design for a shock shim, as shown and described. 